Drill bit blade



FIG. 1 is a perspective illustrative of the drill bit blade of the present invention;

FIG. 2 is a front elevation view of the drill bit blade of FIG. 1, the rear elevation view being a mirror image thereto;

FIG. 3 is a left end elevation view of the drill bit blade of FIG. 1, the right end elevation being a mirror image thereto;

FIG. 4 is a top plan view of the drill bit blade of FIG. 1; and,

FIG. 5 is a bottom plan view of the drill bit blade of FIG. 1. 

The ornamental design for a drill bit blade, as shown and described. 